uls-tracker Sign in

Confidence: Medium · Source: FCC ULS · As of 2026-09-10

WP4TOK

Cancelled

Rosario, Jairo

Location: Aguadilla, PR
Class: Technician
Granted: 2025-02-14
Expires: 2035-02-14
FRN: 0036658011

Sign in to watch

Get notified about status changes and vanity availability for this callsign.

Vanity availability

189d

Available on 2027-03-18

WP4TOK cancelled on 2025-03-18. Hold ends in 189 days.

Last held by Rosario, Jairo (PR).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Prior holders later became

WP4DCNactive· T
Rosario, JairoPRgranted 2025-03-18

License history

0 events

No recorded events.

More vanity slots coming available

From Puerto Rico

WP4TLD 2026-09-10
K5DTC 2026-09-14
WP4LKC 2026-09-14
KP4ECD 2026-09-16
WP3TU 2026-09-16

Starting with WP4

WP4TLD PR · 2026-09-10
WP4LKC PR · 2026-09-14
WP4MRN UT · 2026-09-17
WP4TKL PR · 2026-09-17
WP4KNF PR · 2026-09-18

Full history → Vanity availability → Callsign genealogy →